Neuromodulation : journal of the International Neuromodulation Society
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Patients suffering from severe chronic angina pectoris (AP) that has become therapeutically refractory to medication and revascularization can be adequately treated with spinal cord stimulation (SCS). However, following SCS implantation for angina, not all patients show a consistent improvement in quality of life (QoL). Therefore, we sought to study the association of baseline characteristics and chronic multimorbidities on QoL following SCS implantation. ⋯ Men showed a larger improvement in QoL following SCS implantation, compared with women. As SCS improves rAP, other chronic morbidities such as COPD, DM, and BMI may become the limiting factors for exercise and subsequently adversely affect QoL following implantation of an SCS system. As a consequence of the present relatively small single-center study, we recommend studies regarding rAP and SCS to also address the effect of comorbidities on outcomes.
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Case Reports
Ultrasound-guided caudad epidural access for the lumbosacral neurostimulation: case report and technical note.
This is a case report and description of a new ultrasound-guided caudad epidural needle placement for percutaneous stimulation of the lumbosacral roots. ⋯ Spinal sonography is a promising imaging method to facilitate percutaneous caudad epidural access.
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Idiopathic overactive bladder, urgency-frequency syndromes, interstitial cystitis, pudendal neuralgia, vulvodynia, prostadynia, and coccygodynia have been effectively treated with sacral nerve root modulation. This is most commonly performed with placement of electrodes via a transforaminal approach, predominately to the S3 foramen. This approach is limited by a high lead migration rate and the limitations of stimulating a single nerve root. Beginning in the 1990s, some centers began pursuing retrograde percutaneous placement from the lumbar spine, but adoption of this technique was limited by the technical difficulty of the approach. ⋯ The "laterograde" modification of cephalocaudal approach appears to be technically less difficult method for accomplishing sacral nerve root stimulator electrode placement over multiple roots.
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Neurostimulation is widely accepted for the treatment of refractory Parkinson's disease, essential tremor, and chronic pain. The presence of a cardiovascular implantable electronic device (CIED) might be considered a contraindication for neurostimulators due to the possible interaction between the two devices. The purpose of this study is to report the feasibility and safety of concomitant use of neurostimulators and CIED, and to review surgical and clinical precautions needed to avoid possible interference between the two systems. ⋯ The concomitant use of neurostimulator(s) and permanent pacemaker(s) can be safely performed. Permanent pacemaker should not be considered a general contraindication for neurostimulation therapy. Current literature lacks evidence to determine the safety of concomitant use of neurostimulator(s) and implantable cardioverter defibrillator(s).